<!doctype html>
<html> 
    <head> 
         <meta charset="utf-8"> 
        <meta name="viewport" content="width=device-width, initial-scale=1"> 
        <title>图书馆管理系统</title> 
    </head> 
    <body>
    <script>
    alert("上传成功，即将返回首页");
    window.location.href="./index.html";
   </script>
   </body>
</html>